121330233213 has 16 divisors (see below), whose sum is σ = 192922607616. Its totient is φ = 66317145840.

The previous prime is 121330233173. The next prime is 121330233239. The reversal of 121330233213 is 312332033121.

It is not a de Polignac number, because 121330233213 - 2¹⁰ = 121330232189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121330233313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125600173 + ... + 125601138.

It is an arithmetic number, because the mean of its divisors is an integer number (12057662976).

Almost surely, 2^121330233213 is an apocalyptic number.

It is an amenable number.

121330233213 is a deficient number, since it is larger than the sum of its proper divisors (71592374403).

121330233213 is a wasteful number, since it uses less digits than its factorization.

121330233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251201344.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 121330233213 its reverse (312332033121), we get a palindrome (433662266334).

The spelling of 121330233213 in words is "one hundred twenty-one billion, three hundred thirty million, two hundred thirty-three thousand, two hundred thirteen".